Power gains will vary based upon available octane, additional modifications and conditions. Typical gains on an otherwise stock n54 powered BMW running on 91-93 octane fuel are 70-80 wheel horsepower and 80-90ft-lbs of torque. With additional basic modifications (exhaust, intercooler and intake upgrades) and higher octane racing fuel, gains of 160-170 wheel horsepower and 200-210ft-lbs of torque can be expected. With upgraded turbos, gains as high as 250whp are possible.

2007 335i with full Vishnu/FFTEC Single turbo, PWM Meth kit and 93oct

2007 335i with full bolt-ons, ASR Turbos, PWM meth kit and race gas:

2007 335i with full bolt-ons and RB Turbos, methanol injection and race gas: